Skin treatment device



FIG. 1 is a front perspective view of a skin treatment device showing our new design.

FIG. 2 is a top plan view of FIG. 1.

FIG. 3 is a right side view of FIG. 1.

FIG. 4 is a left side view of FIG. 1.

FIG. 5 is a back view of FIG. 1; and,

FIG. 6 is a bottom view of FIG. 1. 

The ornamental design for a skin treatment device, as shown and described. 